All bovines, it was to do with the possibility of BSE/nvCJD.Twenty years ago there was a rule/scheme where some animals had to be slaughtered before 30 months of age, [ maybe still there] did this apply to males / females, dairy, beef, l remember it being there but forgot what it entailed.
My memory might be hazy but I have a gut feeling the sh!t hit the fan in some way about 89/90, BSE May well have been around before that, just got a feeling something happened/changed about then.It was 96 when the infamous Stephen Dorrell stood up in the Commons and said what he said , followed by Prof Richard Lacey and his hours of airtime dishing out misinformation to anyone that would listen.